Night Signal on the Gravel

Night fell fast over the roof, and the wind began picking up! I grabbed that clean clear bottle cap and rushed over to the low perimeter wall where tiny gravel stones were piled thick. Dropping down, I dug the copper key into the dark pebbles to scoop out a neat hollow. I set the cap right into the nest, leveled it flat, and then laced my black line around its outer grooved rim with a quick running hitch. Looking into the pool of water, the distant amber streetlights caught the surface, turning my little basin into a glowing beacon right against the stones!